66885520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{881}}^1$

素因数の和:980

約数の個数: 80

約数和(自身を含む): 169957872

約数和(自身を除く): 103072352

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 73, 80, 104, 130, 146, 208, 260, 292, 365, 520, 584, 730, 881, 949, 1040, 1168, 1460, 1762, 1898, 2920, 3524, 3796, 4405, 4745, 5840, 7048, 7592, 8810, 9490, 11453, 14096, 15184, 17620, 18980, 22906, 35240, 37960, 45812, 57265, 64313, 70480, 75920, 91624, 114530, 128626, 183248, 229060, 257252, 321565, 458120, 514504, 643130, 836069, 916240, 1029008, 1286260, 1672138, 2572520, 3344276, 4180345, 5145040, 6688552, 8360690, 13377104, 16721380, 33442760, 66885520]

約数ペア:

[(1, 66885520), (2, 33442760), (4, 16721380), (5, 13377104), (8, 8360690), (10, 6688552), (13, 5145040), (16, 4180345), (20, 3344276), (26, 2572520), (40, 1672138), (52, 1286260), (65, 1029008), (73, 916240), (80, 836069), (104, 643130), (130, 514504), (146, 458120), (208, 321565), (260, 257252), (292, 229060), (365, 183248), (520, 128626), (584, 114530), (730, 91624), (881, 75920), (949, 70480), (1040, 64313), (1168, 57265), (1460, 45812), (1762, 37960), (1898, 35240), (2920, 22906), (3524, 18980), (3796, 17620), (4405, 15184), (4745, 14096), (5840, 11453), (7048, 9490), (7592, 8810)]